RADIOGRAPHIC IMAGING AND EXPOSURE
2026 PRACTICE TEST SHEET FULL SOLUTIONS
CORRECT ANSWERS GUARANTEED PASS
◉ Where is the latent image stored?
Answer: In the phosphor plate.
◉ A latent image must be processed for viewing on a what?
Answer: Computer Monitor
◉ Matrix
Answer: A combination of rows and columns (array).
◉ Pixel
Answer: "Picture elements" or smallest component of matrix.
◉ How are pixels recorded?
Answer: As a single numerical value.
◉ What are recorded a single numerical value?
Answer: Pixels
,◉ How is the size of a pixel measured?
Answer: In microns.
◉ How much does 100 microns equal in millimicrons (mm)?
Answer: 0.1 mm
◉ What do pixels represent?
Answer: Brightness level on a monitor.
◉ What does the location of a pixel correspond with?
Answer: An area within a patient or volume of tissue.
◉ With what is digital image quality improved?
Answer: Larger matrix size and greater number of SMALLER pixels.
◉ What happens as a result of improved digital image quality?
Answer: - Increased computer processing time.
- Increased network transmission time.
- Increased digital storage space.
◉ FOV
, Answer: Field of View
◉ Field of View (FOV)
Answer: Dimensions of an anatomic area.
◉ How is pixel sizes related to FOV and matrix size?
Answer: - The pixel size is directly related to FOV,
- And inversely related to matrix size.
◉ What happens when FOV is increased for the same matrix size?
Answer: It will increase the size of the pixel.
◉ What happens with an increased matrix size for the same FOV?
Answer: - It will decrease pixel size,
- And increase spatial resolution.
◉ What is the mathematical application for pixels?
Answer: Pixel = FOV/Matrix size
◉ How is numerical value assigned to a pixel?
Answer: It's determined by the relative attenuation of x-rays passing
through the volume of tissue.
2026 PRACTICE TEST SHEET FULL SOLUTIONS
CORRECT ANSWERS GUARANTEED PASS
◉ Where is the latent image stored?
Answer: In the phosphor plate.
◉ A latent image must be processed for viewing on a what?
Answer: Computer Monitor
◉ Matrix
Answer: A combination of rows and columns (array).
◉ Pixel
Answer: "Picture elements" or smallest component of matrix.
◉ How are pixels recorded?
Answer: As a single numerical value.
◉ What are recorded a single numerical value?
Answer: Pixels
,◉ How is the size of a pixel measured?
Answer: In microns.
◉ How much does 100 microns equal in millimicrons (mm)?
Answer: 0.1 mm
◉ What do pixels represent?
Answer: Brightness level on a monitor.
◉ What does the location of a pixel correspond with?
Answer: An area within a patient or volume of tissue.
◉ With what is digital image quality improved?
Answer: Larger matrix size and greater number of SMALLER pixels.
◉ What happens as a result of improved digital image quality?
Answer: - Increased computer processing time.
- Increased network transmission time.
- Increased digital storage space.
◉ FOV
, Answer: Field of View
◉ Field of View (FOV)
Answer: Dimensions of an anatomic area.
◉ How is pixel sizes related to FOV and matrix size?
Answer: - The pixel size is directly related to FOV,
- And inversely related to matrix size.
◉ What happens when FOV is increased for the same matrix size?
Answer: It will increase the size of the pixel.
◉ What happens with an increased matrix size for the same FOV?
Answer: - It will decrease pixel size,
- And increase spatial resolution.
◉ What is the mathematical application for pixels?
Answer: Pixel = FOV/Matrix size
◉ How is numerical value assigned to a pixel?
Answer: It's determined by the relative attenuation of x-rays passing
through the volume of tissue.
